A Headteacher got a roasting yesterday for turning the school heating OFF on one of the coldest days of the year — to save the planet.

Pupils shivered in coats, hats and scarves as temperatures fell to just 1°C (34°F).

Head Rob Benzie switched off the radiators to show how the secondary school could cut its carbon footprint.

But some staff and parents slammed the "barbaric" plan.

One teacher called it "beyond stupid" and added: "It was absolutely ridiculous.

"I've never worked in such cold. I'm all for saving the planet but this was barbaric.